- Which popular summer fruit was used as a canteen by early explorers? A: Writings from 400 B.C. to 500 A.D. indicate the watermelon spread from northeastern Africa to Mediterranean countries. Trade and bartering attributed to the territorial expansion but also because of its unique role as a holder of freshwater during long voyages. (Source)
- What is the purpose of a firefly's light? A: Fireflies talk to each other with light. Fireflies emit light mostly to attract mates, although they also communicate for other reasons as well, such as to defend territory and warn predators away. In some firefly species, only one sex lights up. In most, however, both sexes glow; often the male will fly, while females will wait in trees, shrubs and grasses to spot an attractive male. If she finds one, she’ll signal it with a flash of her own. (Source)
- What is the average temperature of the sun? A: The sun has an average temperature of about 5,500 degrees Celsius (9,932 degrees Fahrenheit).